By Manchester United's high standards, it has been a difficult four years.
원문출처 : http://www.cnn.com/2017/10/13/football/manchester-united-park-ji-sung-liverpool-premier-league/index.html
원문출처 : http://www.cnn.com/2017/10/13/football/manchester-united-park-ji-sung-liverpool-premier-league/index.html